[HOW TO] Advanced Virtual Device for Bluetti devices (need an ESP32)

Tutorials
, , ,
1

Hi, i created a method for interfacing a Bluetti power station with Homey.
You need an esp32 with a firmware can bridge bluetooth data to json data
You can use it for reading value from your power station and populate a virtual device created with Device Capabilities app.
I have tested it with an bluetti AC200Max and a battery pack
Actually it only read some info.

Prerequisites:

Step 1: Create a homeyscript for get the power station data (example bluetti_bridge.js)

const b_ip = 'YOUR_ESP32_BRIDGE_IP';
const b_baseurl = 'http://'+ b_ip + '/getData';

function toFixed(num) {
  return Math.trunc((num / 1000) * 100) / 100;    
}

function toFixed2(num) {
  return Math.trunc((num * 100) / 100);    
}

let bluetti = { 'solar_power': '-1', 'home_power': '-1', 'grid_power': '-1', 'battery': '-1', 'ac': 0, 'dc': 0, 'batteries': { 'main': '-1', 'one': '-1', 'two': '-1'} };
try {
  const res = await fetch(b_baseurl);
  if (res.ok) {
    // Get the body JSON
    const data = await res.json();
    //log(data)
    if (data != null) {      
      if (data['dc_input_power'] != null) bluetti.solar_power = toFixed(data['dc_input_power']);
      if (data['ac_output_power'] != null) bluetti.home_power = toFixed2(data['ac_output_power']);
      if (data['ac_input_power'] != null) bluetti.grid_power = toFixed2(data['ac_input_power']);      
      if (data['total_battery_percent'] != null) bluetti.battery = toFixed2(data['total_battery_percent']);
      if (data['pack_battery_percent'] != null) {
        bluetti.batteries.main = toFixed2(data['pack_battery_percent']);
        bluetti.batteries.one = toFixed2((data['total_battery_percent']*2) - data['pack_battery_percent']);
      }
      if (data['ac_output_on'] != null) bluetti.ac = toFixed2(data['ac_output_on']);
      if (data['dc_output_on'] != null) bluetti.dc = toFixed2(data['dc_output_on']);      
    }
  }
} catch (err) {
  bluetti = { 'solar_power': 0, 'home_power': 0, 'grid_power': 0, 'battery': 0, 'ac': 0, 'dc': 0 };
}

if (bluetti.solar_power != '-1') await tag('bluetti_data_solar_power', bluetti.solar_power);
if (bluetti.home_power != '-1') await tag('bluetti_data_home_power', bluetti.home_power);
if (bluetti.grid_power != '-1') await tag('bluetti_data_grid_power', bluetti.grid_power);
if (bluetti.battery_percent != '-1') await tag('bluetti_data_battery', bluetti.battery);
if (bluetti.batteries.main != '-1') await tag('bluetti_data_battery_main', bluetti.batteries.main);
if (bluetti.batteries.one != '-1') await tag('bluetti_data_battery_one', bluetti.batteries.one);
if (bluetti.ac != '-1') await tag('bluetti_data_ac', bluetti.ac);
if (bluetti.dc != '-1') await tag('bluetti_data_dc', bluetti.dc);
     
//log(bluetti);
return true;

Step 2: Create a Virtual Device for your Bluetti power station

  • With app or my.homey.com create a new “Device capabilities” device.

Step 3: Configuring Device Settings

  • Define the capabilities your virtual device will have, you could also import this sample [TEF] String
[tef:AVD:"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":/tef]

Step 4: Populate the virtual device with a flow

This is a implementation sample, you can suggest optimization or fix :slight_smile:

2

How do you get this working with AsyncElegantOTA deprecated?

3

Hi, i have only forked an existent project and add some things, elegantota are in main project

This are my first esp32 experience… Now i known more the ambient and i can rewrite project

4

I have update project and removed deprecated libraries

5

Any progress here? I’ve a Bluetti AC180P and I’m trying to communicate with it through an ESP32. Tried different things with help of AI but cann’t get it working. Can anyone help me?

Thanks in advance

6

You def should check out the current ESPhome Controller app.
De developer is very helpful and keen on getting things to work.

7

Thanks, I’ll do that.